"Janitorial Supplies"
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Ward's® Snowflake Obsidian (Cristobalite), Student Specimens
Volcanic glass with snowflakes embedded throughout.
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Ward's® Build Your Own Collection Kits
Everything You Need to Organize Your Specimens
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Ward's® Soil, Sands, and Gravel Set
Useful for weathering and erosion, soil formation, porosity and permeability, or other general earth science labs.
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